*{margin:0;padding:0;}
	.daohang{
		background-color:#333;
		display:flex;
		justify-content:center;
		height:50px;
	}
	.daohang a{
		display:block;
		height:50px;
		color:#fff;
		text-decoration:none;
		line-height:50px;
	}
	.image1{
		height:320px;
		background-position:center;
		background-repeat:no-repeat;
		background-color:black;
	}
	.image2{
		display:flex;
	}
	.image2 a{
		height:200px;
		width:200px;
		display:block;
		background-repeat:no-repeat;
		border:1px solid black;
		background-size:100% 100%;
	}
	.image2 a:first-child{
		background-image:url(./images/airpods_large.jpg);
	}
	.image2 a:nth-child(2){				
		background-image:url(./images/homepod_large.jpg);
	}
	.image2 a:nth-child(3){				
		background-image:url(./images/macbook_pro_performance_large.jpg);
	}
	.image2 a:nth-child(4){				
		background-image:url(./images/ipad_large.jpg);
	}